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                        <div class="highlight"><pre><span class="c1">// Copyright 2007, Google Inc.</span>
<span class="c1">//</span>
<span class="c1">// Redistribution and use in source and binary forms, with or without</span>
<span class="c1">// modification, are permitted provided that the following conditions are met:</span>
<span class="c1">//</span>
<span class="c1">//  1. Redistributions of source code must retain the above copyright notice,</span>
<span class="c1">//     this list of conditions and the following disclaimer.</span>
<span class="c1">//  2. Redistributions in binary form must reproduce the above copyright notice,</span>
<span class="c1">//     this list of conditions and the following disclaimer in the documentation</span>
<span class="c1">//     and/or other materials provided with the distribution.</span>
<span class="c1">//  3. Neither the name of Google Inc. nor the names of its contributors may be</span>
<span class="c1">//     used to endorse or promote products derived from this software without</span>
<span class="c1">//     specific prior written permission.</span>
<span class="c1">//</span>
<span class="c1">// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS&#39;&#39; AND ANY EXPRESS OR IMPLIED</span>
<span class="c1">// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span>
<span class="c1">// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO</span>
<span class="c1">// EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<span class="c1">// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,</span>
<span class="c1">// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;</span>
<span class="c1">// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,</span>
<span class="c1">// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR</span>
<span class="c1">// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF</span>
<span class="c1">// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<span class="c1">//</span>
<span class="c1">// Sets up google.gears.*, which is *the only* supported way to access Gears.</span>
<span class="c1">//</span>
<span class="c1">// Circumvent this file at your own risk!</span>
<span class="c1">//</span>
<span class="c1">// In the future, Gears may automatically define google.gears.* without this</span>
<span class="c1">// file. Gears may use these objects to transparently fix bugs and compatibility</span>
<span class="c1">// issues. Applications that use the code below will continue to work seamlessly</span>
<span class="c1">// when that happens.</span>

<span class="p">(</span><span class="kd">function</span><span class="p">()</span> <span class="p">{</span>
  <span class="c1">// We are already defined. Hooray!</span>
  <span class="k">if</span> <span class="p">(</span><span class="nb">window</span><span class="p">.</span><span class="nx">google</span> <span class="o">&amp;&amp;</span> <span class="nx">google</span><span class="p">.</span><span class="nx">gears</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">return</span><span class="p">;</span>
  <span class="p">}</span>

  <span class="kd">var</span> <span class="nx">factory</span> <span class="o">=</span> <span class="kc">null</span><span class="p">;</span>

  <span class="c1">// Firefox</span>
  <span class="k">if</span> <span class="p">(</span><span class="k">typeof</span> <span class="nx">GearsFactory</span> <span class="o">!=</span> <span class="s1">&#39;undefined&#39;</span><span class="p">)</span> <span class="p">{</span>
    <span class="nx">factory</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">GearsFactory</span><span class="p">();</span>
  <span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
    <span class="c1">// IE</span>
    <span class="k">try</span> <span class="p">{</span>
      <span class="nx">factory</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">ActiveXObject</span><span class="p">(</span><span class="s1">&#39;Gears.Factory&#39;</span><span class="p">);</span>
      <span class="c1">// privateSetGlobalObject is only required and supported on IE Mobile on</span>
      <span class="c1">// WinCE.</span>
      <span class="k">if</span> <span class="p">(</span><span class="nx">factory</span><span class="p">.</span><span class="nx">getBuildInfo</span><span class="p">().</span><span class="nx">indexOf</span><span class="p">(</span><span class="s1">&#39;ie_mobile&#39;</span><span class="p">)</span> <span class="o">!=</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
        <span class="nx">factory</span><span class="p">.</span><span class="nx">privateSetGlobalObject</span><span class="p">(</span><span class="k">this</span><span class="p">);</span>
      <span class="p">}</span>
    <span class="p">}</span> <span class="k">catch</span> <span class="p">(</span><span class="nx">e</span><span class="p">)</span> <span class="p">{</span>
      <span class="c1">// Safari</span>
      <span class="k">if</span> <span class="p">((</span><span class="k">typeof</span> <span class="nx">navigator</span><span class="p">.</span><span class="nx">mimeTypes</span> <span class="o">!=</span> <span class="s1">&#39;undefined&#39;</span><span class="p">)</span>
           <span class="o">&amp;&amp;</span> <span class="nx">navigator</span><span class="p">.</span><span class="nx">mimeTypes</span><span class="p">[</span><span class="s2">&quot;application/x-googlegears&quot;</span><span class="p">])</span> <span class="p">{</span>
        <span class="nx">factory</span> <span class="o">=</span> <span class="nb">document</span><span class="p">.</span><span class="nx">createElement</span><span class="p">(</span><span class="s2">&quot;object&quot;</span><span class="p">);</span>
        <span class="nx">factory</span><span class="p">.</span><span class="nx">style</span><span class="p">.</span><span class="nx">display</span> <span class="o">=</span> <span class="s2">&quot;none&quot;</span><span class="p">;</span>
        <span class="nx">factory</span><span class="p">.</span><span class="nx">width</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
        <span class="nx">factory</span><span class="p">.</span><span class="nx">height</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
        <span class="nx">factory</span><span class="p">.</span><span class="nx">type</span> <span class="o">=</span> <span class="s2">&quot;application/x-googlegears&quot;</span><span class="p">;</span>
        <span class="nb">document</span><span class="p">.</span><span class="nx">documentElement</span><span class="p">.</span><span class="nx">appendChild</span><span class="p">(</span><span class="nx">factory</span><span class="p">);</span>
      <span class="p">}</span>
    <span class="p">}</span>
  <span class="p">}</span>

  <span class="c1">// *Do not* define any objects if Gears is not installed. This mimics the</span>
  <span class="c1">// behavior of Gears defining the objects in the future.</span>
  <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">factory</span><span class="p">)</span> <span class="p">{</span>
    <span class="k">return</span><span class="p">;</span>
  <span class="p">}</span>

  <span class="c1">// Now set up the objects, being careful not to overwrite anything.</span>
  <span class="c1">//</span>
  <span class="c1">// Note: In Internet Explorer for Windows Mobile, you can&#39;t add properties to</span>
  <span class="c1">// the window object. However, global objects are automatically added as</span>
  <span class="c1">// properties of the window object in all browsers.</span>
  <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nb">window</span><span class="p">.</span><span class="nx">google</span><span class="p">)</span> <span class="p">{</span>
    <span class="nx">google</span> <span class="o">=</span> <span class="p">{};</span>
  <span class="p">}</span>

  <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="nx">google</span><span class="p">.</span><span class="nx">gears</span><span class="p">)</span> <span class="p">{</span>
    <span class="nx">google</span><span class="p">.</span><span class="nx">gears</span> <span class="o">=</span> <span class="p">{</span><span class="nx">factory</span><span class="o">:</span> <span class="nx">factory</span><span class="p">};</span>
  <span class="p">}</span>
<span class="p">})();</span>
</pre></div>

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